Did this issue occur in a previous version of Ubuntu, or is this a new issue?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.15 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.15-rc3-trusty/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1314621 Title: Bluetooth Dongle (Cambridge Silicon Radio, Ltd) doesnt work on ubuntu 14.04 Status in “linux” package in Ubuntu: Incomplete Bug description: Bluetooth Dongle (Cambridge Silicon Radio, Ltd) doesnt work on ubuntu 14.04 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 [modified: boot/vmlinuz-3.13.0-24-generic] ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: sperruolo 1976 F.... pulseaudio CurrentDesktop: Unity Date: Wed Apr 30 09:42:34 2014 HibernationDevice: RESUME=UUID=7baca90b-9427-4acc-b9b4-cb02bf839380 InstallationDate: Installed on 2014-04-25 (4 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: LENOVO 20157 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=d3f21774-ccf3-4a73-bce6-f1b73a6d73de ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2012 dmi.bios.vendor: LENOVO dmi.bios.version: 62CN89WW dmi.board.asset.tag: No Asset Tag dmi.board.name: Lenovo G580 dmi.board.vendor: LENOVO dmi.board.version: 31900003WIN8 STD MLT dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo G580 dmi.modalias: dmi:bvnLENOVO:bvr62CN89WW:bd08/16/2012:svnLENOVO:pn20157:pvrLenovoG580:rvnLENOVO:rnLenovoG580:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoG580: dmi.product.name: 20157 dmi.product.version: Lenovo G580 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1314621/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp